How would a Witch of Doom and a Knight of Light get along??

This is an interesting line of questioning, and I imagine Serving Fortune and Truth, and wanting to Change Doom would fit well together, but I just feel every Classpect could get along with every other Classpect in the right circumstances, so it’s a bit strange. It’s like when I hear someone say they won’t get along with someone because they’re a Scorpio. Like… What?